Abstract
This paper presents results from 3D photothermal reconstruction of real subsurface defects in carbon fiber-reinforced polymers using the virtual wave concept. We apply pulsed thermography during and after interrupted fatigue loading in tensile-tensile configuration for notched multidirectional laminates. In addition, we discuss the influence of the ambient conditions from in-situ photothermal testing on the virtual wave signal. The results obtained from 3D photothermal reconstruction are directly compared with those obtained from laser ultrasound testing. To summarize, we demonstrate a practicable and fast 3D photothermal evaluation of subsurface defect evolution utilizing the virtual wave concept.
Original language | English |
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Article number | 102702 |
Journal | NDT & E INTERNATIONAL |
Volume | 131 |
DOIs | |
Publication status | Published - Oct 2022 |
Keywords
- Fibrous composites
- Multidirectional laminates
- Photothermal reconstruction
- Pulsed thermography
- Subsurface defects
- Virtual wave concept